Question

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JavaScript: formatting number with exactly two decimals

Maybe I’m going about this the wrong way, but I have some javascript which is filling up some text inputs with numbers like 12.434234234. I want the text input to only display 12.43, but I’d like it’s value to remain as 12.434234234.

Is this even possible? If not, what would be the best work-around?

Thanks!
John.

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Although there were some very good answers here, I was looking for something like ‘why don’t you just use this clever one liner thing..’ – hence I’ve ticked the most basic approach which is to just use an extra field. Thanks though! Marked up all answers.

Answer 1

You can store the fine-grained values in hidden fields, and trim the ones displayed for the user.